Waves bye-bye
What is this milestone?
Imitates social gestures
Your baby purposefully raises their hand and waves in response to someone leaving, or when prompted to say 'bye-bye'.
Why it matters
Waving is a critical milestone in nonverbal social communication. It demonstrates an understanding of social routines and shows that they can imitate symbolic gestures used by adults.
What to expect leading up to it
Initial waves often look like a floppy wrist or an opening and closing of the fist rather than a side-to-side wave. Sometimes they will wave *after* the person has already left, as they are still processing the interaction.
How to encourage and support it
Model the behavior consistently. Wave whenever you leave a room or when a guest departs, and say 'bye-bye' cheerfully. You can also gently guide their hand to show them the motion.
When to talk to your doctor
The CDC's milestone checklists say what most children (75% or more) can do by each age. They list “Waves ‘bye-bye’” by 1 year. If your child is not doing this by then, the CDC's advice is not to wait: talk with your child's doctor, share your concerns, and ask about developmental screening. The same goes at any age if your child loses a skill they once had, or if anything else about their development worries you. Source: the CDC's “Learn the Signs. Act Early.” milestone checklists, checked October 5, 2026.
Every child develops at their own pace, and the ages here are the CDC's general guidance — not a developmental screening. This article is not medical advice and is not a substitute for your pediatrician. If you have any concern about your child's development, talk to them.
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